Mechanical spragging device



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Jan. 16, 1923. I 1,442,667.

W. D. INGLE ET AL.

MECHANICAL SPRAGGING DEVICE.

FILED AUG-26,1921. Z SHEETS-SHEET Jan. 16, 1923. 1,442,667. W D INGLE ET AL. MECHANICAL SPRAGGINGQ DEVICE.

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fay 19. 7224241907 WW1 M 4 Patented Jan. 16, 1923,

UNETED' STAKES WILLIAM D. ING-LE AND ROY H. JACKSON, OF OAKLAND CITY, INDIANA.

MECHANICAL SPRAGGING DEVICE.

Application filed August 26, 1921. Serial No. 495,482.

To all whom it may concern:

Be it known that we, WILLIAM D. INGLE, and ROY H. JACKSON, citizens of the United States, residing at Oakland City, in the county of Gibson and State of Indiana, have invented new and useful Improvements in Mechanical Spragging Devices, of which the following is a specification.

This invention relates to railway brakes, particularly to those of the track mounted type, and has for its object the provision of a novel brake mechanism mounted permanently upon a track at a desired location and engageable by the wheels of rolling stock, the purpose of the device being to, stop the cars or at least check their speed as may be desired.

An important and more specific object is the provision of a brake mechanism of this character which includes a shaft carrying spiders engageable by the wheels of the cars, the shaft beingprovided with a brake drum encircled by a brake band contracted by means of a hand lever whereby the braking action may be positively controlled to effect stopping or merely slowing up of the cars.

An additional object is the provision of a spragger of this character which will be simple and inexpensive in manufacture, easy to install, highly efficient and positive in action, durable and efficient in use, and a general improvement in the art.

WVith the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which- Figure 1 is a side elevation of our device associated with a track and engaged by the wheels of a car, a portion of the roadway being shown in section.

Figure 2 is a cross sectional view on line 2-2 of Figure 1, and

Figure 3 is a plan view.

Referring more particularly to the drawings, the letter A designates a road bed, B designates the ties of a trackway, and C designates the usual rails. The letter 1D designates a car which is conventionaly illustrated as being a mine car of ordinary construction having the usual wheels E running upon the rails C.

In carrying out our invention we provide a recess 10 in the road bed, this recess being preferably lined with a plank boxing the 11, a portion of which iscovered by a sheet 11*. At one end of the boxing are timbers 12 upon whichis mounted a timber 13 which extends-across the trackway. The purpose of this recess and boxing is to provide space for the mechanism to be described and the purpose of the lining or boxing is to prevent earth or road bed material from washing in and clogging the mechanism.

Secured upon the undersides" of the rails are bearings 14 through which is journaled a shaft 15 which is provided at one end with a brake drum 16 located above the timbers l2. Secured upon this shaft outwardly of the rails are spiders 17 which have their arms 18 projecting in the path of travel of the car wheels E. The number of arms is immaterial though we have shown and prefer to use four.

ecured upon the timber 13 and extending longitudinaly thereof, is a channel beam 19 upon one end of which are formed or secured spaced ears 20 between which is pivoted, as shown at-21, an L-shaped lever 22 which extends a considerable distance above the track. Also secured to the beam 19 are cars or L-shaped plates 2;, which extend laterally with respect to the beam and which have their free ends connected by a transverse bolt 24:. Surrounding the brake drum 16 is a contractile brake band 25 which has one end connected with the bolt 24 and which has its other end connected with a bolt 26 carried by the free end of the lever 22.

The use of the device is as follows:

Under ordinary conditions, that is when it is desired not to slow up or in any way interfere with the passage of any rolling stock, the lever 22 is permitted to remain in normal position with the band 25 out of gripping engagement with the drum. The shaft 15 is then freely rotatable within its bearings so that when the wheels of a passing car strike against the arms 18 of the spiders. there will be no resistance to the passage of the car. If, however. it is desired to slow up the car or other rolling stock, it is merely necessary that the operator grasp the lever 22 and move the same in the proper direction to contract the band 25 about the drum 16 with more or less friction. hen the wheels of the car strike whichever arms of the spiders are extending above the rails, the consequent rotation of the spiders and the shaft will be opposed by the action of the band and the drum. The degree of slowing up action depends of course entirely upon the pressure exerted on the lever 22 and consequently the brake drum so that a very easy control may be attained.

From the foregoing description and a study of the drawings it will be apparent that we have thus provided a simply constructed and consequently inexpensive mechanical spragger which will efliciently perform all the functions for which it is intended, which is easily manually controllable and which, on account of the fewness of the parts is not likely to get out of order.

/Vhile we have shown and described the preferred embodiment of our invention, it is of course to be understood that we reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described our invention, we claim 1. A railway braking device comprising a shaft journaled transversely beneath the rails of a trackway, a pair of spiders secured upon said shaft and having their arms projecting in the path of travel of the wheels of rolling stock, and means for opposing movement of the shaft.

2. A railway braking device comprising a shaft journaled transversely beneath the rails of a trackway, a pair of spiders secured upon said shaft and having their armsprojecting into the path of travel of the wheels of rolling stock, and means for opposing movement of the shaft comprising a brake drum secured upon the shaft, a contractile band encircling the drum, and a lever for contracting the band.

3. A railway braking device comprising bearings secured upon the underside of the rails of a trackway, a shaft journaled through said bearing, a pair of spiders secured upon the shaft outwardly of the rails and having their arms disposed in the path of travel of the wheels of rolling stock, the outer portions of the bases of the rails being cut away for the accommodation of the spiders, a brake drum secured upon said shaft, and manually controllable friction means associated with the drum. for opp-o ing movement of the shaft.

A railway brake comprising in combination with the rails and road bed of a trackway, the roadway being formed with a transverse trench or recess; a boxing within the recess, timbers within the recess, a shaft journaled below the rails, spiders secured upon said shaft outwardly of the rails and having their arms extending in the path of movement of wheels of rolling stock upon the trackway, a brake drum on one end of said shaft, a beam secured upon said timbers, a lever pivoted upon said beam, and a contraotile brake band encircling said drum and having one end secured with respect to the beam and its other end connected with said lever.

5. A railway braking device comprising a shaft or shafts journaled transverse the rails of a trackway, a spider or spiders secured on said shaft or shafts and having arms projecting in the path of travel of the rolling stock, in such a manner that the spiders and shafts must rotate to allow the rolling stock to move along on the rails of the trackway, and means for opposing the rotation of the shaft or shafts.

6. A railway braking device comprising a shaft or shafts journaled transverse the rails of a trackway, a spider or spiders secured on said shaft or shafts, and having arms projecting in the path of travel of the rolling stock in such a manner that spiders and shafts must rotate to allow the rolling stock to move along on the rails of the trackway, and means for opposing the rotation of the shaft or shafts, comprising a brake drum or brake drums secured upon the shaft or shafts, a contractile band or bands encircling the drum or drums, and a lever for contracting the band or hands.

7. A railway braking device comprising a shaft or shafts journal'ed transverse the rails of a trackway, a spider or spiders secured on said shaft or shafts and having arms projecting in the path of travel of the rolling stock, in such a manner, that when the rotation of the shaft is opposed the arms of the spider or spiders will retard the movement of the rolling stock on the rails of the trackway, and means for opposing the rotation of the shaft or shafts.

- 8. A railway braking'device comprising a revolubly mounted shaft journaled transversely of the rails of a trackway, a plurality of arms radiating from said shaft and disposed in the path of travel of rolling stock on the trackway whereby to be engaged by an element of the rolling stock, and regulatable means for opposing rotation of the shaft.

In testimony whereof we hereto affix our signatures.

WILLIAM D. INGLE. ROY H. JACKSON. 

